SKC Limited Sidekick Pump Step By Step Guide - Manual (Page 9)

www.skcltd.com 224-G3 Issue C Page 7
Respirable Dust Sampling using the Cyclone Sampler
fitted to the bottom of the cyclone sampler.
Grit Pot
Sampler
Body
Filter
Cassette
Air
Inlet
Air
Outlet
Sampler
Top
Retaining
Ring
3. Connect the top tubing connector (air outlet) on the
cyclone sampler to the inlet hosetail on the top of
the sample pump using the length of flexible tubing.
4. To set the flow rate required, in this case 2.2
litre/minute, a flow calibration device such as a
Defender primary calibrator or a rotameter should
be used. Make sure the flow calibrator is capable
of measuring the required flow rate. There are two
types of float used in rotameters. To read them
correctly depends on the type. To read a ball
type rotameter correctly take the reading at the
centre of the ball. To read a float type rotameter
correctly take the reading at the top edge of the
float. Refer to the figure below. The float of a float
type rotameter is usually marked with a number
of dots. The dots give indication that the float
is spinning in the airflow, thus showing that the
float is not touching the walls of the rotameter
tube which could affect the accuracy of the
reading. Note that the rotameter must be placed
onto a flat, level surface to ensure that the float
does not touch the sides of the rotameter tube.
2
2
1
1
5
0
5
0
2
2
1
1
5
0
5
0
Read Here Read Here
Ball Type Float Type
5. Connect the air inlet of the cyclone sampler
to the hosetail on the Defender primary
calibrator marked 'Suction', with a length of